Oil-well pump



Nova 27, 1928. 1,693,102

. J. P. WORTHINGTON OIL WELL PUMP Original Filed Feb. 25, 1926 Patented Nov. 27,1928.

- UNITED STATES PEATENT- OFFICE.

JAMES P. WORTHINGTON, OF PONCA CITY, OKLAHOMA, ASSIGNOR OF ONE-HALF TO LORY J. MILDREN, OF PONCAZCITY, OKLAHOMA.

OIL-WELL rumr.

Application filed February 23, 1926, Serial No. 90,120. Renewed April 14, 1928.

the oil well below the ground surface, with means operable from the surface in order to control said rotary pump, for'the eflicient pumping of oil in the lower end of the well.

A further object of this. invention is the provision of an oil well pump, embodying a simple and economical arrangement of parts, which may be readily cleansed without detaching, the same being adaptable for use in the pumping of wells of considerable depth, and the same being adjustable to pump wells of various depths.

- Other objects and advantages of this in vention will be apparent during the course,

of the, following detailed description.

In the accompanying drawing, forming a part of this specification, and wherein similar reference characters designate corresponding parts throughout'the several views,

Figure 1 is a diagrammatic representation of the improved oil well pump, showing the relative arrangement of parts thereof within the oil well.

Figure 2 is an enlarged f; agmentary sectional view'taken through the oil well pump ,construction, at that portion of the oil well pump construction which is located adjacent the lower end of the well, for the pumping of liquid upwardly in the well.

Figure 3 is a sectional view taken substantially on the line 3"?) of Figure 2.

Figure 4 is a fragmentary sectional View showing portions of the view illustrated in Figure 2, with an operating fluid medium port in closed position, as used during the cleansing of the, pump structure'inthe well.

Figure 5 is a sectional view taken substantially on the line 5-5 of Figure 4.

Figure 6 is a sectional View of the well casing head.

In-the drawing, wherein for the purpose of illustration is shown only a preferred embodiment of this invention, the letter A may generally designate an oil well, which receives ing adjustably positioned upon the upperend of the pipe B by means D. A motor operated pump E is preferably used for directing an operating medium from a reserv01r F into either of the passageways of the outer or inner pipes B or C, for control by deflecting and regulating means G operably positioned in the oil'well, preferably adjacent the bottom thereof, at the lower end of the inner pipe C; i

The well A may be lined with a suitable casing if desired, within which the pipe B may be positioned in stationary manner within the well A, with the upper end of the pipeB extending above the ground surface, and supported in any approved manner according to conventional practice. The outer pine B has a passageway 20 therethrough,

within which a deflector member 21 is mounted, which comprises a part of the means G to be subsequently described; the deflector member 21 being positioned in the lower end of the inner pipe C, at the lower end of the well.

The inner pipe 0 is relatively smaller in diameter than the internal diameter of the passageway 20 of the outer pipe B, and 'it is supported axially in the passageway 20, by the means D which is mounted upon the top of the pipe B, and which is detailed in Figure 6 of the drawing. The pipe 0 is adjustably supported for relative movement in the passageway 20 by the means D, and the lower end thereof, is provided with a tapered opening 22, above the deflector member 21.

he pump E is mounted at the top ofthe erating medium is located. The pump E is also provided with an outlet onduit 24 which well, in any suitable manner, the same being enters the upper end of the outer pipe B, for a the pumping of the impelling or operating fluid from the reservoir F directly into the passageway 20. at the upper end'of the same,

for forced pumping downwardly thru the passageway 20 exteriorly of the inner pipe C, to the deflector member 21.- Under'normal operating circumstances the pipe C is p0- sitioned above the-deflector 21 in spaced ports providing relation, so that the impelling fluid may enter the-inner pipe C and pass up wardly thru the passageway 26 thereof; the

upper end of the inner pipe 0 extendingat 27 above the supporting means D, and depending at 28 into a silencer 29 in the sump F so that the operating medium may be returned to the sump or reservoir F. During such a forced circuit of the oil from the sump F, the motor or pump E is operated, as will be subsequently described. for sucking oil from the lower end of the well, upwardly into the passageway 26 of the inner pipe, where the same mingles with the operating fluid and together therewith is deposited in the sump F, where the same may overflow thru a line 30 to any suitable location.

Under some circumstances. as when cleaning the well, it may be desirable to close the port means to prevent flow of oil between the passageways of the inner and outer pipes 13 and C, above the deflector member 21, and to this end the inner pipe 0 is rendered longitudinally adjustable in the passageway of the outer pipe B, by the means D to be subsequentlvdescribed. The operating medium from the reservoir F is then pumped in a bytill passing relation directly into the passageway of the inner pipe C, thru a suitable by-pass 33. This by-pass may be used independent of whether the port means is closed above the deflector 21, or not, for cleansing of details of the pump structure, by reversing the flow of operating medium. The by-pass 33 preferably comprises a pipe portion 34 connected directly with the outlet 24, and a pipe portion 35 connected directly with the pipe C above the adjusting supporting means D, and telescopically related to the pipe means 34. In the pipe C above the connection of the bypass portion 33 therewith a valve 37 is provided, which is closed during the by-passin'g operation, and a valve 38 is placed in the outlet 24 between the by-pass 33 and the outer pipe B, to permit the pump E to by-pass the operating medium directly into the inner pipe 0, so that it may be force-pumped downwardly thru the pipe C, and thence laterally thru the open port means above the deflector into the passageway of the outer pipe B, and

thence upwardly for a return to the sump or reservoir F, through a pipe line 39.

The deflector member 21 is preferably welded or otherwise secured within the passageway 20 of the outer pipe B, in the desired location. It is ring-shaped, and has a central opening 40 axially aligned with the pipe B, The upper surface thereof is annularly concaved, at 41, between the periphery of the plpe B and the passageway 40, for deflecting the downward flow of the impelling medium laterally towards the axis of the pipe B; to operate the pump means G, as will be subsequently described.

A pump G at the lower ends of the pipes 13 and C, adjacent the bottom of the well A is operated by the impelling medium from the surface pump E, to create a suction in the well for withdrawing oil therefrom and forcmg it upwardly through the inner pipe C.

It comprises an elongated tube 45, which may be conveniently divided into an upper portion 46, above the deflector 21, and a portion 47 below the deflector 21. This tube is rotatably-supported upon anti-friction upper and lower bearing means 48 and 49, carried by the outer pipe i below the deflector member 21. The upper anti-friction means 48 may comrisc inner and outer races 50 and 51 of 1'in shaped formation, respectively welded or otherwise secured upon the exterior surface of the tube 45 and the interior periphery of the pipe B, below the deflector n'iember 21; the same having ball bearings 52 rotatably disposed between the same, and positioned to act as thrust bearings.

The lower bearing means 49 similarly comprises inner and outer ring-shaped races 55 and 56, which are respectively secured, as by welding or screw threading upon the exterior surface at the lower end of the tube 45, and

- The upper portion 46 of the tube 45 is of a diameter sufficient to permit the same to be rotatably received in a snug relation. in the lower end of the passageway 26 of the inner tube C. The tube 45 above the bearing 48 extends thru the passageway 40 of the deflector 21, and immediately above the top surface of the deflector 21. the tube portion 46 is provided with a plurality of spaced parallel slots 60, in the nature of ports, for the passage of impelling fluid from the passageway of the outer pipe B, into the passageway 62 thru the upper tube portion 46, and thence into the passageway 26 of the inner pipe C, or for flow of the operating fluid in reverse direction to that mentioned.

As above mentioned the inner pipe C is adjustable, so that the lower open end therein may be adjusted relatively along the upper tube portion 46, downwardly or upwardly along the elongated ports 60 to the desired degree, to provide a regulated port communication between the inner and outer pipes B and C, or vice versa. If desired, the inner pipe C may be lowered suflicient to seat the tapered open end 22 thereof on the deflector seat 21, to close off communication between the passageways of the inner and outer pipes above the deflector 21. Normally, however, the

parts will beas illustrated in Figure 2, for

eificient operation.

In the passageway 62 of the tube portion screw or vane 67,

' the lower end of the well upwardly into cross bar of spider 83 of any approved tion. The ball valve 82 may be so formed that the outer pipe B above in the lower portion 47 of the tube 45.

thru the tube 45, below 46, above the deflector 21, is placed a spiral which is formed on a shaft 68 extendingiaxially thru the passageway 62; the peripheral edges of the spiral screw 6 being preferably in secured engagement, at the inner periphery of the passageway 62, to provide a spiral way upwardly thru the tube portion 46, above the ports 60, thru which the impelling fluid must be forced from the pas sageway of the pipe B to the passageway of the pipe C, and thereby causing the tube 45 to rotate in its bearings 48 and 49, as can readily be understood.

The impelling fluid being forced downwardly thru the pipe B over the deflector 21 thru the ports and upwardly thru the tortuous way in the tube portion 46 and into the passageway of the inner pipe C, will cause a suction in the lower from the tube 45 for passage into the inner pipe C. .To augment this lifting action, itvis preferredto place a spiral vane or screw, or worm in First, however, a tapered sleeve 71 is placed in the passageway of the tube portion 47, which has an upwardly tapering passageway 7 2 therethrough with a diminishing diameter. In this tapered passageway 7 2 is worm 70 and peripheral edges may be secured in the passageway 2 The worm 70 preferably has a shaft 7 3 extending axially thru the passageway 72 and thus a tortuous spiral way is provided thru the lower portion 47 of the tube 45, which acts to lift the oil thru the tube 45, upon its rotation as above described.

Between the worms or spirals 67 and 70 and annularly projecting into the passageway the deflector 21, is provided a valve seat 80, having a passageway 81 therethroug A ball check valve 82 is received upwardly upon this seat 80, to prevent back flow of impelling medium and oil thru the opening 81; the upward movement of the ball valve 82 being checked by a end of the tube 45, sufficient to draw oil it will vibrate upon downward pressure 1n the tube 46, incident to a reverse pumping o the operating fluid, to permit a portion of the fluid or oil to pass the check valve 82 into the passageway 72, for cleansing the same and cleansing foreign magi rials from the spiral 7 O, which might beco e clogged thereon.

In order'to guide the lowering of the detachable and adjustable pipe in proper centered relation with respect to the outer pipe B, and to receive the upper portion 46 of the motor tube therein, it is preferred to provide a plurality of guide ribs or vanes 90, radially extending into the passageway 20 of the deflector 21, which at their inner edges are spaced from the center of the pipe B, a distance slightly greater and thence laterally then placed the impelling fluid -ly thru formathan the radius of the inner pipe C, to the external periphery thereof, so that the inner pipe C -may be received between'these free edges 91 in. a sliding fit to prevent vibration. The'upper portions of the guide ribs pmject above the top 45, and are convexly inclined at 9.4 in a converging relation from the inner periphery of the outer pipe preferred supporting construction D, a supporting cap or block 95 is fixed upon the top of the pipe B above the ground surface, and this block, 95 supports stationary bolts 96,

which are threaded at their upper ends 97, for p a distance along the length thereof. A supporting spider 98 is secured by wedge slips 99 to the upper end of the movable or adjustable pipe C, and this spider 98 is adjustably supported upon nuts 99 which are threaded on the portion 97 of the bolts 96. In order to adjust the elevate or lower the nuts'99, ascan readily be understood. The operation of the invention will be'apparent from the foregoing. With the by-pass 33 closed, the pump E is operated to force the from the reservoir F clownwardly thru the passageway of the outer pipe B, and thence directed laterally thru the ports 60, by the deflector 21, and is forced upward- 67, and thus causing a rotation of the tube 46, of the pump G. The impelling fluid then passes upwardly thru the passageway 26 of mayforth in Patent pipe 0, it ismerely necessary to the spiral way provided by the screw edge 93 of the Qmotor -tube- B towardth e center of the passageway thereof,-to facilitate thecenterthe inner pipe, and returns to the sump F.

This operation causes a suction in the tube 46, sufficient to lift the check cause'a quantity of oil'from the lower end of the well A to enter the tube 46, and pass the check valve 82, for mingling with the impelling fluid in the pipe 0. Of course, the

worm 70 in the lower end of the motor tube 461lifts the oil or other medium from the we 1.

A reverse flow of the impellingv medium may be effected by closing the valves 37 and 38, thus shunting the impelling medium from the pump E thru the by-pass the upper end of the inner pipe C, and the same is forced downwardly and causes a reverse rotation of the motor tube 46. If the ports 60 are open the impelling medium will pass laterally therethrough and return upwardly thru the passageway of the outer pipe B, and through the pipe 39 t0 the sump F, A

portion of the oil will beiorced past the check valve 82, and I 33 directly into valve 82, incident to Vibration, due to the turbulent flow of the oil, upon the reverse pumping, and thus insuring that all parts of the pipe and motor and pump will he cleansed of foreign sediments.

Various changes in the shape, size. and arrangement of parts may be made to the form 'of invention herein shown and de scribed, without departing from the spirit of the same or the I claim v 1. In a well" pump the combination of an outer pipe having a passageway therethrough, an inner pipe having a passageway therethrough, and located axially thru the passageway of the outer pipe, means for forcing an in'ipelling fluid downwardly thru the passageway of the outer pipe, defleetm' means in the lower part of the passageway of the outer pipe for laterally deflecting the impelling fluid into the passageway of the inner pipe and upwardly therethrough, and motor means rotatably supported adjacent said deflector in the path of the impelling fluid for rotation thereby to create a suction thru the passageway 'of the pump below said deflector.

2. In a pump the combination of an outer pipe, an inner pipe, deflector means in the outer pipe below the inner pipe, means for pumping fluid downwardly thru the outer pipe, and over the deflector upwardly into the and a suction pump rotatably supscope of the claims.

inner pipe, ported at the lower end of the inner pipe having a vportion operably extending into the path of flow of the impelling fluid above said deflector to cause an operation of said suction pump for delivering fluid into the inner pipe.

3. In a well pump the combination of an outer pipe, an inner pipe Within the outer pipe, a deflector carried by the outer pipe below the inner pipe, a pump rotatably supported by the outer pipe including a rotatable portion extending above the deflector into the inner pipe, said portion having transverse ports therein above the deflector, means for pumping an impelling fluid downwardly thru the outer pipe over the deflector and thence thru the ports intoth-e portion of the pump above the deflector, and means in said portion of the pump above said-deflector for causing rotation of the pump incident to travel of the impelling fluid therethrough, said pump below'said deflector having a passageway therethrough open below the deflector.

l. In a well pump the combination of an outer pipe. an inner pipe within the outer pipe, :1 deflector carried by the outer pipe below the inner pipe, a pump rotatably supported by the outer pipe including a rotatable portion extending above the deflector into the inner pipe, said portion having transverse ports therein above the deflector, means for pumping an impelling fluid downwardly thru the outer pipe over the deflector and thence thru the ports into the portion of the pump above the deflector, means in said portion of the pump above said deflector for causing rotation of the pump incident to travel of the impelling fluid therethrough, said pump below said deflector having a passageway therethrough open below the deflector, and a check valve in said passageway below the deflector.

5. In a well pump the combination of an outer pipe, an inner pipe supported in the outer pipe, a deflector in the inner pipe below the lower end of the inner pipe, said inner pipe being open at the lower end thereof, a tube rotatably' supported by'the outer pipe having a passageway theretln'ough, the tube extending thru said deflect-or and the tube having a. passageway thereof open at the up-' per and lower ends thereof, said tube at its upper end extending into the lower open end of the inner pipe, said tube above the deflector having transverse ports to communicate the passageway of the outer pipe and the passageway of the tube below said inner pipe and 'above the deflector, means for forcing an impelling fluid downwardly through the outer pipe towards the deflector, and means in the passageway of the tube above said ports to cause a rotation of the tube as the impelling fluid passes upwardly thru said tube.

(3. In a well pump the combination of an outer pipe, an inner pipe supported in the outer pipe, a deflector in the outer pipe below the lower end of the inner pipe, said inner pipe being open at the lower end thereof, a tube rotatably support-ed by the outer pipe having a passageway therethrough, the tube extending thru said deflector and the tube having a passageway thereof open at the upper and lower ends thereof, said tube at its upper end extending into the lower open end of the inner pipe, said tube above the deflector having transverse ports to communicate the passageway of the outer pipe and the passageway 0f the tube below said inner pipe and above the deflector, means for forcing an impelling' fluid downwardly through the outer pipe towards the deflector, means in the passageway of the tube above said ports to cause a rot-ation of the tube as the impelling fluid passes upwardly thru said tube, and check valve means in the tube passageway below said ports to permit passing of a fluid upwardly therethrough and prevent passing of a fluid downwardly therethrough.

7. In a well pump the combination of an outer pipe, an inner pipe supported in the outer pipe, a deflector in the outer pipe below the lower end of the inner pipe, said inner pipe being open at the lower end thereof, a tube rotatably supported by the outer pipe having a passageway therethrough, the tube extending thru said deflector and the tube having a passageway thereof open at the upper and lower ends thereof, said tube at its upper end extending into the lower open end of the inner pipe, said tube tube, a

sageway of above the deflector having transverse ports to communicate the passageway of the outer pipe and the passageway of the tube below said inner pipe and above the deflector, means for forcing an impelling fluid downwardly through the outer pipe towardsthe deflector, means-in the passageway of the tube above said ports to cause a rotation of the tube as'the impelling fluid passes upwardly thru said tube, check valve means in the tube passageway below said ports to permit passingof a fluid upwardly therethrough and prevent passing of'a fluid downwardly therethrough, and a spiral blade in the passageway of the tube below said check valve.

8. In awell pump the combination of outer and inner tubes having passageways therethrough, the inner tube being located axially through the passageway of the outer deflector having a'passageway there'- through located and carried by the outer pipe below the inner pipe, the inner pipe passageway being open at the lower end of said inner pipe at a point above said deflector, a tube, means carried by the outer pipe rotatably supporting the tube at a location below the deflector, said tube having an upper portion extending into the pasthe passageway at the lower end of the inner pipe, said upper portion of said tube having a spiral blade therein, said tube above the deflector having transverse ports coinmunicating the interior of the tube with the passageway of the outer pipe.

9. In a well pump the combination of outer and inner tubeshavin passageways therethrou h, the inner tu a being located axially. t rough the passageway of the outer tube, a deflector having a passageway therethe deflector and upwardly intotudinally in through located and carried by the outer pipe below the inner pipe. the inner pipe passageway being open at the lower end of said inner pipe at a point above said deflector, a tube, means carried by the outer pipe rotatably supporting the tube at a location below the deflector, said tube having an upper portion extending into the passageway of the deflector and upwardly into the passageway at the lower end of the inner pipe, said upper port-ion of saidtube having a spiral blade therein, said tube above the deflector having transverse ports connecting the interior of the tube with the passageway of the outer pipe, and means for adjusting the inner pipe longitudinally over said ports to regulate the opened or closed degree of communication thereof with respect to the passageway of said tube.

10. In a pump the combination of an outer pipe having a passageway therethrough, an

inner pipe having a passageway there- 'through," means mounting the inner pipe in the outer pipe for longitudinal adjustment therein, deflector means mounted in the passageway of the outer pipe at a location below the inner pipe, and tubular means supported by the deflector means having a passageway aligning with the passageway of the inner pipe and communicating therewith, the said tubular means having a port arrangement transversely therethrough adjacent'the'deflector means and over which port arrangement the lower ena of the inner pipe is adjustable upon movement thereof longithe outer pipe to regulate the opening of the port arrangement in a communicating relation between the passageways oi the outerand i'nner pipes.

JAMES P. WORTHINGTON. 

